ABB M3BJ 355SMB 12 3-Phase Squirrel Cage Motor - IP55
Part Number: 3GBJ356222-ADG
Quick Summary
M3BJ 355SMB 12 is a robust 3-phase squirrel cage motor designed for demanding industrial drives. Maintenance teams often face downtime when motors fail in harsh environments, and this model mitigates that risk with a rugged, cast-iron frame and proven insulation. IP55 protection and IC411 insulation ensure reliability in dusty or moist sites, while IMB3 mounting supports straightforward replacement in existing equipment. With a 355 frame and 12-pole configuration, it aligns with standard drive systems and simplifies stocking. For procurement, predictable lead times and a standardized product profile help reduce total cost of ownership while preserving uptime and performance.
Product Information
Extended Description
3GBJ356222-ADG ABB: M3BJ 355SMB 12
ABB Type Designation
M3BJ 355SMB 12
Invoice Description
M3BJ 355SMB 12
Product Name
3-Phase squirrel cage motor
Product Type
3BJ0__M3BJ_CI
Made To Order
No
Minimum Order Quantity
1 piece
Selling Unit of Measure
piece
Country of Origin
Finland (FI)
Customs Tariff Number
85015394
Electrical Data
Temperature Class Default
--
Altitude
1000 m
Ambient Temperature
40 °C
IC Class
IC411
IP Class
IP55
Insulation Class
ICLF
Number of Poles (High)
12
Two Speed Motor
No
Type of Duty
S1
Voltage Code
D
Frame Material
Cast Iron
Frame Size
355
Bearing
6322/C3
Bearing NDE
6316M/C3 VL0241
IM Class
IMB3 IM1001
Package Level 1 Units
0 pallet (lift)
Product Net Weight
1780 kg
Gross Weight
1810 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Cast Iron frame and 355 frame provide exceptional rigidity and heat dissipation, translating to improved reliability in conveyors, pumps, and fans. This translates to reduced unplanned downtime and lower maintenance costs in harsh industrial environments. IP55 protection combined with IC411 insulation protects windings from dust and moisture, enabling longer service intervals and predictable performance in facilities with challenging ambient conditions. The 12-pole design delivers stable, torque-rich operation suitable for heavy-load applications like compressors and hoists, while the S1 duty rating ensures continuous operation without thermal fatigue. IMB3 mounting and a robust bearing setup (6322/C3 with 6316M/C3 VL0241) simplify installation and future replacements, reducing downtime during line-up changes. The cast iron construction and 355 frame support compatibility with legacy ABB motors, easing retrofits and spare parts planning, while the 85015394 tariff positioning aids import logistics and compliance. Overall, these features combine to lower total cost of ownership through fewer outages, easier maintenance, and reliable performance at altitude up to 1000 m and ambient temperatures up to 40 °C.
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FAQs
Yes. The M3BJ 355SMB 12 is designed for standard 355 frame IEC mounting with IMB3 base compatibility. When replacing older equipment, verify flange alignment, shaft end dimensions, and connectorization to ensure a smooth retrofit with minimal downtime.
The motor is a 12-pole, 3-phase unit intended for S1 continuous duty. Exact running speed depends on supply frequency and load; typical 50 Hz operation delivers a standard torque profile for 12-pole machines, while 60 Hz operation increases synchronous speed. Consult the ABB motor curve for precise torque-speed data.
Yes. IP55 provides protection against dust ingress and limited water exposure, making it suitable for dusty or dry-warm environments. For washdown or high-pressure cleaning, ensure proper cable sealing and enclosure integrity on the broader system to maintain overall protection.
Key specifications include IP55 ingress protection and IC411 insulation class, with IMB3 IM1001 mounting suitable for standard installations. The unit is built to meet typical industry expectations for durable, continuous-duty motors in industrial settings and originates from Finland, aligning with regional manufacturing standards.
The cast iron frame and robust bearings (6322/C3, 6316M/C3 VL0241) minimize maintenance needs and extend service life, reducing downtime and replacement costs. Long-term ROI comes from reliability in harsh environments, lower spare-part complexity, and predictable lead times for stocking and procurement, especially in retrofit projects.